Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
29 Cards in this Set
- Front
- Back
Intrinsic: Inferior Longitudinal |
Depress tongue tip, side to side motion |
|
Intrinsic: Superior longitudinal |
elevates tongue tip, side to side motion |
|
Intrinsic: Transverse |
narrow the tongue |
|
Intrinsic: vertical |
longitudinal groove |
|
Extrinsic: genioglossus |
protrusion poster fibers, retraction anterior fibers, also depresses medial portion |
|
Extrinsic: styloglossus |
Retraction of tongue back toward pharynx |
|
Extrinsic: hyoglossus |
depresses lateral portion |
|
Extrinsic: Palatoglossus |
elevates posterior portion |
|
Depresses Mandible |
Digastric, mylohyoid, geniohyoid, lateral (external) pterygoid |
|
Elevates mandible |
Masseter, temporalis, medial (internal) pterygoid |
|
Temporalis |
Function: elevation & retraction |
|
Anterior belly of digastricus |
Function: elevates hyoid bone when mandible is fixed |
|
Posterior belly of digastricus |
elevates hyoid bone |
|
mylohyoid |
elevates hyoid bone, floor of mouth, tongue, depressed mandible |
|
Geniohyoid |
with mandible fixed, raises hyoid bone superiorly & anteriorly; depresses mandible |
|
sphenoid bone: Greater wing |
contributes to the orbit of the eye |
|
Lateral pterygoid |
protrude mandible by sliding condyle down & forward; produces grinding action |
|
medial pterygoid |
elevation of mandible with masseter forms mandibular sling which straps mandible to skull |
|
Masseter |
closes jaw |
|
Transverse: Buccinators |
compresses lips & cheek against teeth |
|
orbicularis oris |
closes mouth & pucker lips |
|
Transverse: risorius |
assist in drawing mouth corner laterally |
|
Angular: Zygomatic Major |
draws mouth angle superiorly & laterally (broad smile) |
|
Angular: Levator Labii Superior |
elevates upper lip |
|
Vertical: depressor anguli oris |
depress corner of lips; also assists to compress lips by drawing upper lip angle down |
|
Vertical: mentalis |
wrinkle chin, pull lower lip out |
|
Transverse |
course horizontally from origin & insert into orbicularis oris |
|
angular |
approach corner of mouth obliquely from above or below |
|
vertical |
enter corners of mouth from directly above or below |